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    <div class="facet_cont" data-db="pmc" data-default_grps="fg_types,fg_text_availability,fg_pubdate,fg_funding" data-sd="db:'pmc',op:'search',term:'china',qk:'4',linkname:'',idsfromresult:'',extra:''"><ul class="facet" data-filter_id="types" id="_types"><li class="filter_grp "><div class="clearfix"><h3>Article attributes</h3><a href="#" data-value_id="" class="clear clear_hide">Clear</a></div><ul><li class="fil_val"><a href="#" data-value_id="associateddata">Associated Data</a></li><li class="fil_val"><a href="#" data-value_id="manuscripts">Author manuscripts</a></li><li class="fil_val"><a href="#" data-value_id="digitazed">Digitized back issues</a></li><li class="fil_val"><a href="#" data-value_id="medline">MEDLINE journals</a></li><li class="fil_val"><a href="#" data-value_id="openaccess">Open access</a></li><li class="fil_val"><a href="#" data-value_id="preprint">Preprints</a></li><li class="fil_val"><a href="#" data-value_id="retracted">Retracted</a></li></ul></li></ul><ul class="facet" data-filter_id="text_availability" id="_text_availability"><li class="filter_grp "><div class="clearfix"><h3>Text availability</h3><a href="#" data-value_id="" class="clear clear_hide">Clear</a></div><ul><li class="fil_val"><a href="#" data-value_id="embargoed">Include embargoed articles</a></li></ul></li></ul><ul class="facet" data-filter_id="pubdate" data-ds="yes" id="_pubdate"><li class="filter_grp"><div class="clearfix"><h3>Publication date</h3><a href="#" data-value_id="" class="clear clear_hide">clear</a></div><ul><li class="fil_val"><a href="#" data-value_id="y_1">1 year</a></li><li class="fil_val"><a href="#" data-value_id="y_5">5 years</a></li><li class="fil_val"><a href="#" data-value_id="y_10">10 years</a></li><li class="daterange"><a id="facet_date_rangepubdate" href="#facet_date_range_divpubdate" class="jig-ncbipopper" data-jigconfig="triggerPosition: 'middle right',                          destPosition: 'middle left', hasArrow: true, arrowDirection: 'left', closeEvent : 'click', openEvent: 'click', adjustFit: 'autoAdjust', openAnimation: 'none',                          closeAnimation: 'none',  addCloseButton:true,  width: '375px'">
                        Custom range...</a></li><div id="facet_date_range_divpubdate" style="display:none;" class="facets_dialog"><button class="ui-ncbipopper-close-button ui-ncbipopper-close-button-generated ui-state-default ui-corner-all ui-button-text-only ui-ncbibutton ui-ncbibutton-blue" generated="true" role="button" aria-disabled="false"><span class="ui-button-text">x</span></button><h4>Custom date range</h4><div><label class="offscreen_noflow" for="facet_date_st_yearpubdate">Start Year</label><input type="text" size="4" placeholder="YYYY" id="facet_date_st_yearpubdate" value="" class="input_date_ym" /><label class="offscreen_noflow" for="facet_date_st_monthpubdate">Start Month</label><input type="text" size="2" placeholder="MM" id="facet_date_st_monthpubdate" value="" class="input_date_ym" /><label class="offscreen_noflow" for="facet_date_st_daypubdate">Start Day</label><input type="text" size="2" placeholder="DD" id="facet_date_st_daypubdate" value="" /><span>to</span><label class="offscreen_noflow" for="facet_date_end_yearpubdate">End Year</label><input type="text" size="4" placeholder="YYYY" id="facet_date_end_yearpubdate" value="" class="input_date_ym" /><label class="offscreen_noflow" for="facet_date_end_monthpubdate">End Month</label><input type="text" size="2" placeholder="MM" id="facet_date_end_monthpubdate" value="" class="input_date_ym" /><label class="offscreen_noflow" for="facet_date_end_daypubdate">End Day</label><input type="text" size="2" placeholder="DD" id="facet_date_end_daypubdate" value="" /></div><div class="actions clearfix"><button class="jig-ncbibutton  primary-action btn_date_apply" data-jigconfig="'color': 'ui-ncbibutton-blue'" id="facet_date_range_applypubdate">Apply</button><button class="jig-ncbibutton  secondary-action btn_date_clear" data-jigconfig="'color': 'ui-ncbibutton-gray'" id="facet_date_range_clearpubdate">Clear</button></div></div></ul></li></ul><ul class="facet" data-filter_id="funding" id="_funding"><li class="filter_grp "><div class="clearfix"><h3>Research Funder</h3><a href="#" data-value_id="" class="clear clear_hide">Clear</a></div><ul><li class="fil_val"><a href="#" data-value_id="funder_nih">NIH</a></li><li class="fil_val"><a href="#" data-value_id="funder_ahrq">AHRQ</a></li><li class="fil_val"><a href="#" data-value_id="funder_acl">ACL</a></li><li class="fil_val"><a href="#" data-value_id="funder_aspr">ASPR</a></li><li class="fil_val"><a href="#" data-value_id="funder_cdc">CDC</a></li><li class="fil_val"><a href="#" data-value_id="funder_dhs">DHS</a></li><li class="fil_val"><a href="#" data-value_id="funder_epa">EPA</a></li><li class="fil_val"><a href="#" data-value_id="funder_fda">FDA</a></li><li class="fil_val"><a href="#" data-value_id="funder_nasa">NASA</a></li><li class="fil_val"><a href="#" data-value_id="funder_nist">NIST</a></li><li class="fil_val"><a href="#" data-value_id="funder_va">VA</a></li><li class="more"><a href="#funding_more" data-value_id="fetch_more" data-jigconfig=" hasArrow: true, arrowDirection: 'left', closeEvent : 'click', openEvent: 'click', adjustFit: 'autoAdjust',                              openAnimation: 'none', closeAnimation: 'none',  addCloseButton:true, width: '300px'">Customize ...</a><div style="display:none;" id="funding_more"></div></li></ul></li></ul><ul class="facet facet_reset"><li><a href="#" data-value_id="reset">Clear all</a></li></ul><ul class="facet_tools"><li><a id="more_filter_groups_link" href="#more_filter_groups" class="jig-ncbipopper" data-jigconfig="triggerPosition: 'middle right', destPosition: 'top left', hasArrow: true,                  arrowDirection: 'left', closeEvent : 'click', openEvent: 'click', adjustFit: 'autoAdjust', openAnimation: 'none', closeAnimation: 'none', addCloseButton:true,  width: '180px'">
                Show additional filters</a></li><div id="more_filter_groups" style="display:none;" class="facets_dialog"><button class="ui-ncbipopper-close-button ui-ncbipopper-close-button-generated ui-state-default ui-corner-all ui-button-text-only ui-ncbibutton ui-ncbibutton-blue" generated="true" role="button" aria-disabled="false"><span class="ui-button-text">x</span></button><h4>Additional filters</h4><ul class="filter_groups_more facet"><li><input type="checkbox" id="fg_types" /><label for="fg_types">Article attributes</label></li><li><input type="checkbox" id="fg_text_availability" /><label for="fg_text_availability">Text availability</label></li><li><input type="checkbox" id="fg_pubdate" data-always_show="yes" /><label for="fg_pubdate">Publication date</label></li><li><input type="checkbox" id="fg_funding" data-always_show="yes" /><label for="fg_funding">Research Funder</label></li><li><input id="fg_field_search" type="checkbox" /><label for="fg_field_search">Search fields</label></li></ul><div class="actions clearfix"><button class="filter_groups_more_apply jig-ncbibutton primary-action" id="filter_groups_apply" data-jigconfig="'color': 'ui-ncbibutton-blue'">Show</button></div></div></ul><input name="EntrezSystem2.PEntrez.PMC.Facets.FacetsUrlFrag" sid="1" type="hidden" value="filters=" /><input name="EntrezSystem2.PEntrez.PMC.Facets.FacetSubmitted" sid="1" type="hidden" value="false" /><input name="EntrezSystem2.PEntrez.PMC.Facets.BMFacets" sid="1" type="hidden" value="" /></div>
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                    </script></h4><div id="send_to_menu" class="tabPopper send_to"><fieldset><legend>Choose Destination</legend><ul class="column_list"><li><input type="radio" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendTo" sid="1" value="File" id="dest_File" /><label for="dest_File">File</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendTo" sid="2" value="AddToClipboard" id="dest_AddToClipboard" /><label for="dest_AddToClipboard">Clipboard</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendTo" sid="3" value="Mail" id="dest_Mail" /><label for="dest_Mail">E-mail</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendTo" sid="4" value="AddToCollections" id="dest_AddToCollections" /><label for="dest_AddToCollections">Collections</label></li></ul></fieldset><div class="submenu file" id="submenu_File" style="display: none;"><p id="submenu_File_hint" class="hidden"></p><ul><li><label for="file_format">Format</label><select id="file_format" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.FFormat" sid="1"><option value="DocSum" format="text" selected="selected">Summary (text)</option><option value="MEDLINE" format="text">MEDLINE</option><option value="XML" format="text">XML</option><option value="uilist" format="text">PMCID List</option></select></li><li><label for="file_sort">Sort by</label><select id="file_sort" name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.FSort" sid="1"><option value="" selected="selected">Default order</option><option value="PubDate">Pub Date</option><option value="Journal">Journal</option><option value="PmcLiveDate">PMC Live Date</option></select></li></ul><button name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendToSubmit" sid="1" class="button_apply file ncbipopper-close-button" type="submit" cmd="File">Create File</button></div><div class="submenu mail" id="submenu_Mail" style="display: none;"><p id="email_alert" class="hidden"></p><ul><li id="email_desc">Search: china </li><li><label for="email_format">Format</label><select id="email_format" name="email_format"><option value="DocSum" selected="selected">Summary</option><option value="DocSum" format="text">Summary (text)</option><option value="MEDLINE" format="text">MEDLINE</option><option value="uilist" format="text">PMCID List</option></select></li><li id="email_sort_option"><label for="email_sort">Sort by</label><select id="email_sort" name="email_sort"><option value="" selected="selected">Default order</option><option value="PubDate">Pub Date</option><option value="Journal">Journal</option><option value="PmcLiveDate">PMC Live Date</option></select></li><li id="email_count_option"><label for="email_count">Number to send</label><select id="email_count" name="email_count"><option value="5">5</option><option value="10">10</option><option value="20" selected="selected">20</option><option value="50">50</option><option value="100">100</option></select></li><li id="email_start_option"><label for="email_start">Start with item</label><input id="email_start" name="email_start" type="text" size="4" value="41" /></li><li><label for="email_address">E-mail</label><input id="email_address" value="" name="email_address" /></li></ul><button name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendToSubmit" sid="2" class="button_apply email" type="submit" cmd="Mail" qk="4">E-mail</button><div><a href="/corehtml/query/MyNCBI/exquery/spam_note.html" onclick="window.open('/corehtml/query/MyNCBI/exquery/spam_note.html','','resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no,alwaysRaised=yes,depend=yes,top=50,left=200,width=550,height=430');return false;">"SPAM" filtering software notice</a></div></div><div class="submenu addtoclipboard" id="submenu_AddToClipboard" style="display: none;"><p id="submenu_AddToClipboard_hint" class="hidden"></p><button name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendToSubmit" sid="3" class="button_apply clipboard ncbipopper-close-button" type="submit" cmd="AddToClipboard">Add to Clipboard</button></div><div class="submenu addtocollections" id="submenu_AddToCollections" style="display: none;"><p id="submenu_AddToCollections_hint" class="hidden"></p><button name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.SendToSubmit" sid="4" class="button_apply collections ncbipopper-close-button" type="submit" cmd="AddToCollections">Add to Collections</button></div></div><div><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.FileFormat" sid="1" type="hidden" value="docsum" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.LastPresentation" sid="1" type="hidden" value="docsum" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.Presentation" sid="1" type="hidden" value="docsum" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.PageSize" sid="1" type="hidden" value="20" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.LastPageSize" sid="1" type="hidden" value="20" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.Sort" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.LastSort" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.FileSort" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.Format" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_DisplayBar.LastFormat" sid="1" type="hidden" value="" /></div></div>
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        <div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox8620853" class="ui-helper-hidden-accessible">Select item 8620853</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="1" type="checkbox" id="UidCheckBox8620853" value="8620853" /><span>41.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=41&amp;ncbi_uid=8620853&amp;link_uid=8620853&amp;linksrc=docsum_title" href="/pmc/articles/PMC8620853/" class="view">Organophosphate Esters in <b>China</b>: Fate, Occurrence, and Human Exposure</a></div><div class="supp"><div class="desc">Zhihui Hu, Lingshi Yin, Xiaofeng Wen, Changbo Jiang, Yuannan Long, Jiawei Zhang, Ruyi Liu</div><div class="details">Toxics. <span class="citation-publication-date">2021 Nov; </span>9(11): 310.  <span class="">Published online 2021 Nov 16. </span><span class="doi"><span>doi: </span>10.3390/toxics9110310</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC8620853</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=41&amp;ncbi_uid=8620853&amp;link_uid=8620853&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC8620853/?report=classic">Article</a><a ref="ordinalpos=41&amp;ncbi_uid=8620853&amp;link_uid=8620853&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC8620853/?report=reader">PubReader</a><a ref="ordinalpos=41&amp;ncbi_uid=8620853&amp;link_uid=8620853&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC8620853/pdf/toxics-09-00310.pdf">PDF–4.6M</a><a ref="ordinalpos=41&amp;ncbi_uid=8620853&amp;link_uid=8620853&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC8620853">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7818068" class="ui-helper-hidden-accessible">Select item 7818068</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="2" type="checkbox" id="UidCheckBox7818068" value="7818068" /><span>42.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=42&amp;ncbi_uid=7818068&amp;link_uid=7818068&amp;linksrc=docsum_title" href="/pmc/articles/PMC7818068/" class="view">Prevalence and genotype distribution of group A rotavirus circulating in Shanxi Province, <b>China</b> during 2015–2019</a></div><div class="supp"><div class="desc">Lifeng Zhao, Xiaohong Shi, Dequan Meng, Jiane Guo, Yiping Li, Lirong Liang, Xiaofang Guo, Ran Tao, Xiaohua Zhang, Ruihong Gao, Li Gao, Jitao Wang</div><div class="details">BMC Infect Dis. <span class="citation-publication-date">2021; </span>21: 94.  <span class="">Published online 2021 Jan 21. </span><span class="doi"><span>doi: </span>10.1186/s12879-021-05795-4</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7818068</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=42&amp;ncbi_uid=7818068&amp;link_uid=7818068&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7818068/?report=classic">Article</a><a ref="ordinalpos=42&amp;ncbi_uid=7818068&amp;link_uid=7818068&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7818068/?report=reader">PubReader</a><a ref="ordinalpos=42&amp;ncbi_uid=7818068&amp;link_uid=7818068&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7818068/pdf/12879_2021_Article_5795.pdf">PDF–2.4M</a><a ref="ordinalpos=42&amp;ncbi_uid=7818068&amp;link_uid=7818068&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7818068">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6480332" class="ui-helper-hidden-accessible">Select item 6480332</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="3" type="checkbox" id="UidCheckBox6480332" value="6480332" /><span>43.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=43&amp;ncbi_uid=6480332&amp;link_uid=6480332&amp;linksrc=docsum_title" href="/pmc/articles/PMC6480332/" class="view">Spatio–Temporal Relationship and Evolvement of Socioeconomic Factors and PM<sub>2.5</sub> in <b>China</b> During 1998–2016</a></div><div class="supp"><div class="desc">Yi Yang, Jie Li, Guobin Zhu, Qiangqiang Yuan</div><div class="details">Int J Environ Res Public Health. <span class="citation-publication-date">2019 Apr; </span>16(7): 1149.  <span class="">Published online 2019 Mar 30. </span><span class="doi"><span>doi: </span>10.3390/ijerph16071149</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6480332</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=43&amp;ncbi_uid=6480332&amp;link_uid=6480332&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6480332/?report=classic">Article</a><a ref="ordinalpos=43&amp;ncbi_uid=6480332&amp;link_uid=6480332&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6480332/?report=reader">PubReader</a><a ref="ordinalpos=43&amp;ncbi_uid=6480332&amp;link_uid=6480332&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6480332/pdf/ijerph-16-01149.pdf">PDF–22M</a><a ref="ordinalpos=43&amp;ncbi_uid=6480332&amp;link_uid=6480332&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6480332">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox5753475" class="ui-helper-hidden-accessible">Select item 5753475</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="4" type="checkbox" id="UidCheckBox5753475" value="5753475" /><span>44.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=44&amp;ncbi_uid=5753475&amp;link_uid=5753475&amp;linksrc=docsum_title" href="/pmc/articles/PMC5753475/" class="view">The prevalent status and genetic diversity of porcine reproductive and respiratory syndrome virus in <b>China</b>: a molecular epidemiological perspective</a></div><div class="supp"><div class="desc">Zhenhua Guo, Xin-xin Chen, Rui Li, Songlin Qiao, Gaiping Zhang</div><div class="details">Virol J. <span class="citation-publication-date">2018; </span>15: 2.  <span class="">Published online 2018 Jan 4. </span><span class="doi"><span>doi: </span>10.1186/s12985-017-0910-6</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC5753475</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=44&amp;ncbi_uid=5753475&amp;link_uid=5753475&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC5753475/?report=classic">Article</a><a ref="ordinalpos=44&amp;ncbi_uid=5753475&amp;link_uid=5753475&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC5753475/?report=reader">PubReader</a><a ref="ordinalpos=44&amp;ncbi_uid=5753475&amp;link_uid=5753475&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC5753475/pdf/12985_2017_Article_910.pdf">PDF–1.9M</a><a ref="ordinalpos=44&amp;ncbi_uid=5753475&amp;link_uid=5753475&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC5753475">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6198482" class="ui-helper-hidden-accessible">Select item 6198482</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="5" type="checkbox" id="UidCheckBox6198482" value="6198482" /><span>45.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=45&amp;ncbi_uid=6198482&amp;link_uid=6198482&amp;linksrc=docsum_title" href="/pmc/articles/PMC6198482/" class="view">The role of socioeconomic and climatic factors in the spatio-temporal variation of human rabies in <b>China</b></a></div><div class="supp"><div class="desc">Danhuai Guo, Wenwu Yin, Hongjie Yu, Jean-Claude Thill, Weishi Yang, Feng Chen, Deqiang Wang</div><div class="details">BMC Infect Dis. <span class="citation-publication-date">2018; </span>18: 526.  <span class="">Published online 2018 Oct 22. </span><span class="doi"><span>doi: </span>10.1186/s12879-018-3427-8</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6198482</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=45&amp;ncbi_uid=6198482&amp;link_uid=6198482&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6198482/?report=classic">Article</a><a ref="ordinalpos=45&amp;ncbi_uid=6198482&amp;link_uid=6198482&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6198482/?report=reader">PubReader</a><a ref="ordinalpos=45&amp;ncbi_uid=6198482&amp;link_uid=6198482&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6198482/pdf/12879_2018_Article_3427.pdf">PDF–1.4M</a><a ref="ordinalpos=45&amp;ncbi_uid=6198482&amp;link_uid=6198482&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6198482">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6534915" class="ui-helper-hidden-accessible">Select item 6534915</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="6" type="checkbox" id="UidCheckBox6534915" value="6534915" /><span>46.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=46&amp;ncbi_uid=6534915&amp;link_uid=6534915&amp;linksrc=docsum_title" href="/pmc/articles/PMC6534915/" class="view">Genetic analysis of porcine productive and respiratory syndrome virus between 2013 and 2014 in Southern parts of <b>China</b>: identification of several novel strains with amino acid deletions or insertions in nsp2</a></div><div class="supp"><div class="desc">Shaofeng Hong, Ying Wei, Siyuan Lin, Jiabing Huang, Wei He, Jing Yao, Ying Chen, Ouyang Kang, Weijian Huang, Zuzhang Wei</div><div class="details">BMC Vet Res. <span class="citation-publication-date">2019; </span>15: 171.  <span class="">Published online 2019 May 24. </span><span class="doi"><span>doi: </span>10.1186/s12917-019-1906-9</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6534915</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=46&amp;ncbi_uid=6534915&amp;link_uid=6534915&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6534915/?report=classic">Article</a><a ref="ordinalpos=46&amp;ncbi_uid=6534915&amp;link_uid=6534915&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6534915/?report=reader">PubReader</a><a ref="ordinalpos=46&amp;ncbi_uid=6534915&amp;link_uid=6534915&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6534915/pdf/12917_2019_Article_1906.pdf">PDF–1.8M</a><a ref="ordinalpos=46&amp;ncbi_uid=6534915&amp;link_uid=6534915&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6534915">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6327439" class="ui-helper-hidden-accessible">Select item 6327439</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="7" type="checkbox" id="UidCheckBox6327439" value="6327439" /><span>47.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=47&amp;ncbi_uid=6327439&amp;link_uid=6327439&amp;linksrc=docsum_title" href="/pmc/articles/PMC6327439/" class="view">New strains of Japanese encephalitis virus circulating in Shanghai, <b>China</b> after a ten-year hiatus in local mosquito surveillance</a></div><div class="supp"><div class="desc">Yuan Fang, Yi Zhang, Zheng-Bin Zhou, Shang Xia, Wen-Qi Shi, Jing-Bo Xue, Yuan-Yuan Li, Jia-Tong Wu</div><div class="details">Parasit Vectors. <span class="citation-publication-date">2019; </span>12: 22.  <span class="">Published online 2019 Jan 9. </span><span class="doi"><span>doi: </span>10.1186/s13071-018-3267-9</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6327439</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=47&amp;ncbi_uid=6327439&amp;link_uid=6327439&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6327439/?report=classic">Article</a><a ref="ordinalpos=47&amp;ncbi_uid=6327439&amp;link_uid=6327439&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6327439/?report=reader">PubReader</a><a ref="ordinalpos=47&amp;ncbi_uid=6327439&amp;link_uid=6327439&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6327439/pdf/13071_2018_Article_3267.pdf">PDF–6.1M</a><a ref="ordinalpos=47&amp;ncbi_uid=6327439&amp;link_uid=6327439&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6327439">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7536030" class="ui-helper-hidden-accessible">Select item 7536030</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="8" type="checkbox" id="UidCheckBox7536030" value="7536030" /><span>48.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=48&amp;ncbi_uid=7536030&amp;link_uid=7536030&amp;linksrc=docsum_title" href="/pmc/articles/PMC7536030/" class="view">Environmental impacts of nitrogen emissions in <b>China</b> and the role of policies in emission reduction</a></div><div class="supp"><div class="desc">X. J. Liu, W. Xu, E. Z. Du, A. H. Tang, Y. Zhang, Y. Y.  Zhang, Z. Wen, T. X. Hao, Y. P. Pan, L. Zhang, B. J.  Gu, Y. Zhao, J. L. Shen, F. Zhou, Z. L. Gao, Z. Z.  Feng, Y. H. Chang, K. Goulding, J. L.  Collett, Jr, P. M. Vitousek, F. S.  Zhang</div><div class="details">Philos Trans A Math Phys Eng Sci. <span class="citation-publication-date">2020 Oct 30; </span>378(2183): 20190324.  <span class="">Published online 2020 Sep 28. </span><span class="doi"><span>doi: </span>10.1098/rsta.2019.0324</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7536030</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=48&amp;ncbi_uid=7536030&amp;link_uid=7536030&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7536030/?report=classic">Article</a><a ref="ordinalpos=48&amp;ncbi_uid=7536030&amp;link_uid=7536030&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7536030/?report=reader">PubReader</a><a ref="ordinalpos=48&amp;ncbi_uid=7536030&amp;link_uid=7536030&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7536030/pdf/rsta20190324.pdf">PDF–1.4M</a><a ref="ordinalpos=48&amp;ncbi_uid=7536030&amp;link_uid=7536030&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7536030">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6721277" class="ui-helper-hidden-accessible">Select item 6721277</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="9" type="checkbox" id="UidCheckBox6721277" value="6721277" /><span>49.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=49&amp;ncbi_uid=6721277&amp;link_uid=6721277&amp;linksrc=docsum_title" href="/pmc/articles/PMC6721277/" class="view">A descriptive analysis of the Spatio-temporal distribution of intestinal infectious diseases in <b>China</b></a></div><div class="supp"><div class="desc">Ying Mao, Ning Zhang, Bin Zhu, Jinlin Liu, Rongxin He</div><div class="details">BMC Infect Dis. <span class="citation-publication-date">2019; </span>19: 766.  <span class="">Published online 2019 Sep 2. </span><span class="doi"><span>doi: </span>10.1186/s12879-019-4400-x</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6721277</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=49&amp;ncbi_uid=6721277&amp;link_uid=6721277&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6721277/?report=classic">Article</a><a ref="ordinalpos=49&amp;ncbi_uid=6721277&amp;link_uid=6721277&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6721277/?report=reader">PubReader</a><a ref="ordinalpos=49&amp;ncbi_uid=6721277&amp;link_uid=6721277&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6721277/pdf/12879_2019_Article_4400.pdf">PDF–3.0M</a><a ref="ordinalpos=49&amp;ncbi_uid=6721277&amp;link_uid=6721277&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6721277">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7903934" class="ui-helper-hidden-accessible">Select item 7903934</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="10" type="checkbox" id="UidCheckBox7903934" value="7903934" /><span>50.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=50&amp;ncbi_uid=7903934&amp;link_uid=7903934&amp;linksrc=docsum_title" href="/pmc/articles/PMC7903934/" class="view">Changes in newly notified cases and control of tuberculosis in <b>China</b>: time-series analysis of surveillance data</a></div><div class="supp"><div class="desc">Ye-Sheng Wang, Wen-Long Zhu, Tao Li, Wei Chen, Wei-Bing Wang</div><div class="details">Infect Dis Poverty. <span class="citation-publication-date">2021; </span>10: 16.  <span class="">Published online 2021 Feb 24. </span><span class="doi"><span>doi: </span>10.1186/s40249-021-00806-7</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7903934</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=50&amp;ncbi_uid=7903934&amp;link_uid=7903934&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7903934/?report=classic">Article</a><a ref="ordinalpos=50&amp;ncbi_uid=7903934&amp;link_uid=7903934&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7903934/?report=reader">PubReader</a><a ref="ordinalpos=50&amp;ncbi_uid=7903934&amp;link_uid=7903934&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7903934/pdf/40249_2021_Article_806.pdf">PDF–3.4M</a><a ref="ordinalpos=50&amp;ncbi_uid=7903934&amp;link_uid=7903934&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7903934">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6459537" class="ui-helper-hidden-accessible">Select item 6459537</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="11" type="checkbox" id="UidCheckBox6459537" value="6459537" /><span>51.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=51&amp;ncbi_uid=6459537&amp;link_uid=6459537&amp;linksrc=docsum_title" href="/pmc/articles/PMC6459537/" class="view">Predicting population age structures of <b>China</b>, India, and Vietnam by 2030 based on compositional data</a></div><div class="supp"><div class="desc">Yigang Wei, Zhichao Wang, Huiwen Wang, Yan Li, Zhenyu Jiang</div><div class="details">PLoS One. <span class="citation-publication-date">2019; </span>14(4): e0212772.  <span class="">Published online 2019 Apr 11. </span><span class="doi"><span>doi: </span>10.1371/journal.pone.0212772</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6459537</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=51&amp;ncbi_uid=6459537&amp;link_uid=6459537&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6459537/?report=classic">Article</a><a ref="ordinalpos=51&amp;ncbi_uid=6459537&amp;link_uid=6459537&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6459537/?report=reader">PubReader</a><a ref="ordinalpos=51&amp;ncbi_uid=6459537&amp;link_uid=6459537&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6459537/pdf/pone.0212772.pdf">PDF–3.3M</a><a ref="ordinalpos=51&amp;ncbi_uid=6459537&amp;link_uid=6459537&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6459537">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7702669" class="ui-helper-hidden-accessible">Select item 7702669</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="12" type="checkbox" id="UidCheckBox7702669" value="7702669" /><span>52.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=52&amp;ncbi_uid=7702669&amp;link_uid=7702669&amp;linksrc=docsum_title" href="/pmc/articles/PMC7702669/" class="view">The development of a legal framework for blood donation and blood safety in <b>China</b> over 24 years</a></div><div class="supp"><div class="desc">Dajun Gao, Heng Li, Kang Wang</div><div class="details">BMC Health Serv Res. <span class="citation-publication-date">2020; </span>20: 1099.  <span class="">Published online 2020 Nov 30. </span><span class="doi"><span>doi: </span>10.1186/s12913-020-05944-6</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7702669</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=52&amp;ncbi_uid=7702669&amp;link_uid=7702669&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7702669/?report=classic">Article</a><a ref="ordinalpos=52&amp;ncbi_uid=7702669&amp;link_uid=7702669&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7702669/?report=reader">PubReader</a><a ref="ordinalpos=52&amp;ncbi_uid=7702669&amp;link_uid=7702669&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7702669/pdf/12913_2020_Article_5944.pdf">PDF–1.3M</a><a ref="ordinalpos=52&amp;ncbi_uid=7702669&amp;link_uid=7702669&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7702669">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7405013" class="ui-helper-hidden-accessible">Select item 7405013</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="13" type="checkbox" id="UidCheckBox7405013" value="7405013" /><span>53.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=53&amp;ncbi_uid=7405013&amp;link_uid=7405013&amp;linksrc=docsum_title" href="/pmc/articles/PMC7405013/" class="view">Characterization of <em>Bacillus cereus</em> in Dairy Products in <b>China</b></a></div><div class="supp"><div class="desc">Xiao-Ye Liu, Qiao Hu, Fei Xu, Shuang-Yang Ding, Kui Zhu</div><div class="details">Toxins (Basel) <span class="citation-publication-date">2020 Jul; </span>12(7): 454.  <span class="">Published online 2020 Jul 14. </span><span class="doi"><span>doi: </span>10.3390/toxins12070454</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7405013</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=53&amp;ncbi_uid=7405013&amp;link_uid=7405013&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7405013/?report=classic">Article</a><a ref="ordinalpos=53&amp;ncbi_uid=7405013&amp;link_uid=7405013&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7405013/?report=reader">PubReader</a><a ref="ordinalpos=53&amp;ncbi_uid=7405013&amp;link_uid=7405013&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7405013/pdf/toxins-12-00454.pdf">PDF–2.0M</a><a ref="ordinalpos=53&amp;ncbi_uid=7405013&amp;link_uid=7405013&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7405013">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6755566" class="ui-helper-hidden-accessible">Select item 6755566</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="14" type="checkbox" id="UidCheckBox6755566" value="6755566" /><span>54.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=54&amp;ncbi_uid=6755566&amp;link_uid=6755566&amp;linksrc=docsum_title" href="/pmc/articles/PMC6755566/" class="view">The publication trend of neuropathic pain in the world and <b>China</b>: a 20–years bibliometric analysis</a></div><div class="supp"><div class="desc">Jishi Ye, Huang Ding, Juan Ren, Zhongyuan Xia</div><div class="details">J Headache Pain. <span class="citation-publication-date">2018; </span>19(1): 110.  <span class="">Published online 2018 Nov 15. </span><span class="doi"><span>doi: </span>10.1186/s10194-018-0941-4</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6755566</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=54&amp;ncbi_uid=6755566&amp;link_uid=6755566&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6755566/?report=classic">Article</a><a ref="ordinalpos=54&amp;ncbi_uid=6755566&amp;link_uid=6755566&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6755566/?report=reader">PubReader</a><a ref="ordinalpos=54&amp;ncbi_uid=6755566&amp;link_uid=6755566&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6755566/pdf/10194_2018_Article_941.pdf">PDF–2.3M</a><a ref="ordinalpos=54&amp;ncbi_uid=6755566&amp;link_uid=6755566&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6755566">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7215340" class="ui-helper-hidden-accessible">Select item 7215340</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="15" type="checkbox" id="UidCheckBox7215340" value="7215340" /><span>55.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=55&amp;ncbi_uid=7215340&amp;link_uid=7215340&amp;linksrc=docsum_title" href="/pmc/articles/PMC7215340/" class="view">The Relationship between the Migrant Population’s Migration Network and the Risk of COVID-19 Transmission in <b>China</b>—Empirical Analysis and Prediction in Prefecture-Level Cities</a></div><div class="supp"><div class="desc">Chenjing Fan, Tianmin Cai, Zhenyu Gai, Yuerong Wu</div><div class="details">Int J Environ Res Public Health. <span class="citation-publication-date">2020 Apr; </span>17(8): 2630.  <span class="">Published online 2020 Apr 11. </span><span class="doi"><span>doi: </span>10.3390/ijerph17082630</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7215340</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=55&amp;ncbi_uid=7215340&amp;link_uid=7215340&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7215340/?report=classic">Article</a><a ref="ordinalpos=55&amp;ncbi_uid=7215340&amp;link_uid=7215340&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7215340/?report=reader">PubReader</a><a ref="ordinalpos=55&amp;ncbi_uid=7215340&amp;link_uid=7215340&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7215340/pdf/ijerph-17-02630.pdf">PDF–1.6M</a><a ref="ordinalpos=55&amp;ncbi_uid=7215340&amp;link_uid=7215340&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7215340">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7804586" class="ui-helper-hidden-accessible">Select item 7804586</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="16" type="checkbox" id="UidCheckBox7804586" value="7804586" /><span>56.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=56&amp;ncbi_uid=7804586&amp;link_uid=7804586&amp;linksrc=docsum_title" href="/pmc/articles/PMC7804586/" class="view">Policy disparities in fighting COVID-19 among Japan, Italy, Singapore and <b>China</b></a></div><div class="supp"><div class="desc">Xiaohan Wang, Leiyu Shi, Yuyao Zhang, Haiqian Chen, Gang Sun</div><div class="details">Int J Equity Health. <span class="citation-publication-date">2021; </span>20: 33.  <span class="">Published online 2021 Jan 13. </span><span class="doi"><span>doi: </span>10.1186/s12939-020-01374-2</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7804586</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=56&amp;ncbi_uid=7804586&amp;link_uid=7804586&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7804586/?report=classic">Article</a><a ref="ordinalpos=56&amp;ncbi_uid=7804586&amp;link_uid=7804586&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7804586/?report=reader">PubReader</a><a ref="ordinalpos=56&amp;ncbi_uid=7804586&amp;link_uid=7804586&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7804586/pdf/12939_2020_Article_1374.pdf">PDF–1.3M</a><a ref="ordinalpos=56&amp;ncbi_uid=7804586&amp;link_uid=7804586&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7804586">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox7803947" class="ui-helper-hidden-accessible">Select item 7803947</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="17" type="checkbox" id="UidCheckBox7803947" value="7803947" /><span>57.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=57&amp;ncbi_uid=7803947&amp;link_uid=7803947&amp;linksrc=docsum_title" href="/pmc/articles/PMC7803947/" class="view">Summary of the COVID-19 epidemic and estimating the effects of emergency responses in <b>China</b></a></div><div class="supp"><div class="desc">Junwen Tao, Yue Ma, Caiying Luo, Jiaqi Huang, Tao Zhang, Fei Yin</div><div class="details">Sci Rep. <span class="citation-publication-date">2021; </span>11: 717.  <span class="">Published online 2021 Jan 12. </span><span class="doi"><span>doi: </span>10.1038/s41598-020-80201-8</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7803947</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=57&amp;ncbi_uid=7803947&amp;link_uid=7803947&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7803947/?report=classic">Article</a><a ref="ordinalpos=57&amp;ncbi_uid=7803947&amp;link_uid=7803947&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7803947/?report=reader">PubReader</a><a ref="ordinalpos=57&amp;ncbi_uid=7803947&amp;link_uid=7803947&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7803947/pdf/41598_2020_Article_80201.pdf">PDF–1.5M</a><a ref="ordinalpos=57&amp;ncbi_uid=7803947&amp;link_uid=7803947&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7803947">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox6203974" class="ui-helper-hidden-accessible">Select item 6203974</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="18" type="checkbox" id="UidCheckBox6203974" value="6203974" /><span>58.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=58&amp;ncbi_uid=6203974&amp;link_uid=6203974&amp;linksrc=docsum_title" href="/pmc/articles/PMC6203974/" class="view">African swine fever: an unprecedented disaster and challenge to <b>China</b></a></div><div class="supp"><div class="desc">Tao Wang, Yuan Sun, Hua-Ji Qiu</div><div class="details">Infect Dis Poverty. <span class="citation-publication-date">2018; </span>7: 111.  <span class="">Published online 2018 Oct 26. </span><span class="doi"><span>doi: </span>10.1186/s40249-018-0495-3</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC6203974</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=58&amp;ncbi_uid=6203974&amp;link_uid=6203974&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6203974/?report=classic">Article</a><a ref="ordinalpos=58&amp;ncbi_uid=6203974&amp;link_uid=6203974&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6203974/?report=reader">PubReader</a><a ref="ordinalpos=58&amp;ncbi_uid=6203974&amp;link_uid=6203974&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC6203974/pdf/40249_2018_Article_495.pdf">PDF–675K</a><a ref="ordinalpos=58&amp;ncbi_uid=6203974&amp;link_uid=6203974&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC6203974">Cite</a></div></div></div></div><div class="rprt"><div class="rprtnum"><label for="UidCheckBox8780551" class="ui-helper-hidden-accessible">Select item 8780551</label><input name="EntrezSystem2.PEntrez.PMC.Pmc_ResultsPanel.Pmc_RVDocSum.uid" sid="19" type="checkbox" id="UidCheckBox8780551" value="8780551" /><span>59.</span></div><div class="rslt"><div class="title"><a ref="ordinalpos=59&amp;ncbi_uid=8780551&amp;link_uid=8780551&amp;linksrc=docsum_title" href="/pmc/articles/PMC8780551/" class="view">Genetic Characterization and Variation of African Swine Fever Virus <b>China</b>/GD/2019 Strain in Domestic Pigs</a></div><div class="supp"><div class="desc">Xun Wang, Xiaoying Wang, Xiaoxiao Zhang, Sheng He, Yaosheng Chen, Xiaohong Liu, Chunhe Guo</div><div class="details">Pathogens. <span class="citation-publication-date">2022 Jan; 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</span>20: 673.  <span class="">Published online 2020 Jul 22. </span><span class="doi"><span>doi: </span>10.1186/s12913-020-05496-9</span></div></div><div class="aux"><div class="resc"><dl class="rprtid"><dt>PMCID: </dt><dd>PMC7374832</dd></dl></div></div><div class="aux"><div class="links"><a ref="ordinalpos=60&amp;ncbi_uid=7374832&amp;link_uid=7374832&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7374832/?report=classic">Article</a><a ref="ordinalpos=60&amp;ncbi_uid=7374832&amp;link_uid=7374832&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7374832/?report=reader">PubReader</a><a ref="ordinalpos=60&amp;ncbi_uid=7374832&amp;link_uid=7374832&amp;linksrc=docsum_title" class="view" href="/pmc/articles/PMC7374832/pdf/12913_2020_Article_5496.pdf">PDF–695K</a><a ref="ordinalpos=60&amp;ncbi_uid=7374832&amp;link_uid=7374832&amp;linksrc=docsum_title" class="view citationexporter" href="#" data-citationid="PMC7374832">Cite</a></div></div></div></div></div>
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      <a co-legend-rid="indivImg1" image-link="/pmc/articles/PMC3950216/figure/pone-0091570-g001/" class="img_link figpopup imagepopup" href="/pmc/articles/PMC3950216" ref="log$=PMC_ImageAd&amp;discoId=PMC_ImageAd&amp;ncbi_uid=5908422&amp;link_uid=PMC3950216&amp;pos=1">
        <img src="/pmc/articles/instance/3950216/bin/pone.0091570.g001.gif" src-large="/pmc/articles/instance/3950216/bin/pone.0091570.g001.jpg" alt="Figure 1" />
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        <div class="legend-from"><span class="legend-from-title">Figure 1</span>A map of the sample area and site locations in China.</div>
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          <div>Abbreviations are: DYSY, Jinxiu, Guangxi, China (Captive population); DCC, Dacaichong, Hezhou, Guangxi, China; CSC, Chishuichong, Hezhou, Guangxi, China; DSC, Deshengchong, Hezhou, Guangxi, China; YSC, Yusanchong, Hezhou, Guangxi, China; GP, Guiping, Guangxi, China (wild population); GPY, Guiping, Guangxi, China (Captive population); MBC, Miaobei chong, Luokeng, Guangdong, China; CSK, Chishuikeng, Luokeng, Guangdong, China; DBT, Dabeitou, Luokeng, Guangdong, China; SK, Shenkeng, Luokeng, Guangdong, China; LZD, Linzhouding nature reserve, Maoming, Guangdong, China; LHD, Luhuding nature reserve Maoming, Guangdong, China.</div>
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            <a href="/pmc/articles/PMC3950216" ref="log$=PMC_ImageAd_title_link&amp;discoId=PMC_ImageAd&amp;ncbi_uid=5908422&amp;link_uid=PMC3950216&amp;pos=1">Genetic Diversity and Population Demography of the Chinese Crocodile Lizard (Shinisaurus crocodilurus) in China</a>
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          <div>PLoS One. 2014;9(3):e91570.</div>
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      <a co-legend-rid="indivImg2" image-link="/pmc/articles/PMC4589403/figure/pone.0139485.g002/" class="img_link figpopup imagepopup" href="/pmc/articles/PMC4589403" ref="log$=PMC_ImageAd&amp;discoId=PMC_ImageAd&amp;ncbi_uid=8112161&amp;link_uid=PMC4589403&amp;pos=2">
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        <div class="legend-from"><span class="legend-from-title">Fig 2</span>Distributions of the 20 most common HLA five-locus haplotypes in the seven geographic regions of China.</div>
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          <div>(A) China; (B) Northeast China (NE); (C) North China (NC); (D) Northwest China (NW); (E) East China (EC); (F) Central China (CC); (G) South China (SC); (H) Southwest China (SW).</div>
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            <a href="/pmc/articles/PMC4589403" ref="log$=PMC_ImageAd_title_link&amp;discoId=PMC_ImageAd&amp;ncbi_uid=8112161&amp;link_uid=PMC4589403&amp;pos=2">High-Resolution Analyses of Human Leukocyte Antigens Allele and Haplotype Frequencies Based on 169,995 Volunteers from the China Bone Marrow Donor Registry Program</a>
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          <div>PLoS One. 2015;10(9):e0139485.</div>
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        <div class="legend-from"><span class="legend-from-title">Figure 1</span>Annual variations of different grades of annual average PM2.5 concentrations in whole Mainland China and seven geographical subareas from 1998 to 2012.</div>
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          <div>(<b>a</b>) Mainland China, (<b>b</b>) North China, (<b>c</b>) Northeast China, (<b>d</b>) Northwest China, (<b>e</b>) Subarea Map, (<b>f</b>) East China, (<b>g</b>) Southwest China, (<b>h</b>) South China, (<b>i</b>) Central China. The subarea map was generated in ArcGIS10.2, URL: http://www.esrichina-bj.cn/softwareproduct/ArcGIS/.</div>
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            <a href="/pmc/articles/PMC5228184" ref="log$=PMC_ImageAd_title_link&amp;discoId=PMC_ImageAd&amp;ncbi_uid=10130900&amp;link_uid=PMC5228184&amp;pos=3">Spatiotemporal Pattern of PM2.5 Concentrations in Mainland China and Analysis of Its Influencing Factors using Geographically Weighted Regression</a>
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          <div>Sci Rep. 2017;7:40607.</div>
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        <div class="legend-from"><span class="legend-from-title">Fig 3</span>The spatial distribution of twelve megacities of China.</div>
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          <div>All of them are the most representative cities in typical regions of China, including North China (Beijing, Tianjin) drawn in red, Northeast China drawn in orange (Harbin, Shenyang), Central China drawn in brown (Zhengzhou, Wuhan), West China drawn in purple (Xi’an, Chengdu), East China drawn in blue (Shanghai, Nanjing), South China drawn in green (Shenzhen, Guangzhou).</div>
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            <a href="/pmc/articles/PMC7891711" ref="log$=PMC_ImageAd_title_link&amp;discoId=PMC_ImageAd&amp;ncbi_uid=19440689&amp;link_uid=PMC7891711&amp;pos=4">Multifractal scaling analyses of urban street network structure: The cases of twelve megacities in China</a>
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          <div>PLoS One. 2021;16(2):e0246925.</div>
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